Insulating material.



UNITED STATES PATENT OFFIC JULIUS DE Lone, OF BROOKLYN, NEW YORK.

INSULATING MATERIAL.

SPECIFICATION forming part of Letters Patent No. 687,131, dated November19, 1901. Application filed May 9, 1900. Renewed July 31,1901. SerialNo. 70,311- (No specimens.)

To all whom it may concern:

Be it known that I, JULIUS DE Lose, a resident of the borough ofBrooklyn, in the city of New York and State of New York, have invented anew and useful Improvement in Insulating Material; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof.

My invention relates to insulating material, and has special referenceto mixtures or compositions of material employed for insulating againstheat and cold and for deadening sound, and has for its object to providea simple, cheap, and effective insulator of this character.

My invention consists, generally stated, in the use of cattle-hair incombination with cellulose, such as ground cornstalk pith the inclosedmixture in place. -It will thus be seenthat my improved insulatingmaterial is cheap and simple to produce, is very efiective in use, andmay be employed for a great variety of purposes-much as in the walls ofrailway and refrigerator cars, icehouses, refrigerators, or similarlocations, as an insulator against heat and cold in walls andpartitions, and as a deadener of sound, &c., in its use as a carpetlining, &c.

what I claim as new, and desire to secure by Letters Patent, is-- 1. Aheat-insulating material, consisting of a mixture of cattle-hair andcellulose in a dry state and without any binding material, substantiallyas set forth and described.

2. Aheat-insulating material, consisting of mixed in accordance with amtmixture of cattle-hair and cornstalk-pith,

which the insulating material is to be put, the mixture being used inbulk or held between walls of paper or equivalent material, ashereinafter more specifically set forth and described, and particularlypointed out in the claims.

The manufacture of my improved insulating material consists,essentially, in the use of cattle-hair in combination with cellulose,such as the pith from cornstalks, which is ground and mixed with thecattle-hair and the mixture used in bulk or held between walls offlexible paper or other equivalent flexible material. Such paper may bemade fireproof or waterproof, or both fire and wa- 5 ter proof, and maybe quilted or stitched, or

the paper may be coated upon its inner surface with adhesive materialin'order to keep substantially as set forth and described.

3. A heat-insulating material, consisting of a mixture of cattle-hairand ground cornstalkpith, substantially as set forth and described.

4. A lining for heat-insulating purposes consisting of a fillingmaterial composed of cattle-hair and cellulose secured between flexibleinclosing sheets.

5. A lining for heat-insulating purposes consisting of cattle-hair andcornstalk=pith secured between flexible inclosing sheets.

In testimony whereof I, the said JULIUS DE LONG, have hereunto set myhand.

,. JULIUS DE LONG.

Witnesses: I

WM. KORFF, GEO. WAGNER.

Having now fully described my invention,

